Unless it's for practicing, almost never. There are so many languages out there covering different domains (even for legislative programming for example).
Designing your own language however is very beneficial for a developer and I believe that every developer should try to build at least one simple programming language in it's career.
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Unless it's for practicing, almost never. There are so many languages out there covering different domains (even for legislative programming for example).
Designing your own language however is very beneficial for a developer and I believe that every developer should try to build at least one simple programming language in it's career.